Eagle_SX4 Posted July 9, 2023 Share Posted July 9, 2023 I read a bunch of posts on this topic before I decided to go for it but here is a problem that I have not seen talked about in any post I have read. The problem is the hub bearing seal. The axle shafts I got came out of a '97 TJ with the bigger 760 u joints. They still had the hubs on them when I bought them. The TJ hubs use a sealed bearing with no need for a hub housing seal. The hubs on my '87 however don't have sealed bearing and require the flange on the axle shaft to seal up the hub. The flanges on the TJ axles are to small to seal up the hubs. My solution was to pull the flanges off the old axles and press them on top of the TJ flanges. Now I have late model axle shafts in early hubs. I did take a measurement of the id of the seal and it was about 2.890 should be more than enough to make a good seal(Still putting everything back together). Link to comment Share on other sites More sharing options...
pizzaman09 Posted July 9, 2023 Share Posted July 9, 2023 Cool stuff! Link to comment Share on other sites More sharing options...
PIKE Posted July 9, 2023 Share Posted July 9, 2023 I used 1996 ZJ CV shafts when I converted mine. I sealed the unit bearing to the shaft with some Loctite 515 Link to comment Share on other sites More sharing options...
Eagle_SX4 Posted July 11, 2023 Author Share Posted July 11, 2023 It looks like the hub style was changed in 1990 to use sealed bearings and not a seal between the hub and the axle shaft. You must have the later style of hubs on your axle. Adding a sealant to the inboard side of the splines should keep water away from the splines making it easier to take the hubs off later. I had a hard time getting the hubs to separate from the TJ shafts because there was a bit of rust on the splines because they weren't sealed from the elements. I actually like the older style hubs better because of the hub to axle seal. It keeps the water off of the splines and the bearings. Link to comment Share on other sites More sharing options...
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